355220501231 has 8 divisors (see below), whose sum is σ = 358937779200. Its totient is φ = 351504350208.

The previous prime is 355220501213. The next prime is 355220501281. The reversal of 355220501231 is 132105022553.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 355220501231 - 2¹⁰ = 355220500207 is a prime.

It is a super-2 number, since 2×355220501231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 355220501194 and 355220501203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355220501201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359570 + ... + 916368.

It is an arithmetic number, because the mean of its divisors is an integer number (44867222400).

Almost surely, 2^355220501231 is an apocalyptic number.

355220501231 is a deficient number, since it is larger than the sum of its proper divisors (3717277969).

355220501231 is an equidigital number, since it uses as much as digits as its factorization.

355220501231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563473.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 355220501231 its reverse (132105022553), we get a palindrome (487325523784).

The spelling of 355220501231 in words is "three hundred fifty-five billion, two hundred twenty million, five hundred one thousand, two hundred thirty-one".